Description:
------------
It is noted in the documentation that 'symlink' is unimplemented on the Win32 platform.  It could be easily implemented for Windows 2000 and above OS's.

I found that PostgresSQL implements them in the file src/port/dirmod.c.

They refer to a codeproject article: http://www.codeproject.com/W2K/junctionpoints.asp

as a reference.

Reproduce code:
---------------
mkdir('c:\test');
symlink('c:\junk', 'c:\test');


Expected result:
----------------
it would work on the Windows Platform

Actual result:
--------------
error unimplemented function